Hey, have you ever been walking in a cave and you need to know if its day or not? Well, I know about the in-game watch but wouldn't it be easier to prees a key and you are able to look at your wrist and see the time, then when you let go of the key you are back to normal?
Exactly this. Having to push a button to look at your clock would actually be a more complicated way of checking the time.
I really wish you could place clocks on a wall, though.